Doraemon Tools and Gadgets

Translation konyaku/ Translation Jelly (ほんやくコンニャク, hon’yaku-konnyaku?)
A piece of konjac jelly which enables a person to understand and speak any known language in the universe. The effect begins after the person ingests the jelly, but the duration of the effect is unknown. While the ones Doraemon uses are usually unflavored, in the story Nobita’s Birth of Japan (のび太の日本誕生?), he used one labeled to be miso flavored, suggesting the existence of various flavors, which are more expensive.